[OpenSIPS-Users] rtpengine + manual SDP manipulations

[Jeff Pyle]

David,

I have.  The "origin" flag replaces the IP address of the origin but
nothing before it.  The "session-connection" digs into the various sessions
that may be defined in the SDP and replaces all the c= lines (important for
RTP flows), but unfortunately it doesn't do anything for the s= (the
session name).



- Jeff


On Sat, Jan 18, 2020 at 11:12 AM David Villasmil <
david.villasmil.work at gmail.com> wrote:

> I believe you can use this:
>
> replace
>
> Similar to the flags list. Controls which parts of the SDP body should be
> rewritten. Contains zero or more of:
>
>    -
>
>    origin
>
>    Replace the address found in the *origin* (o=) line of the SDP body.
>    Corresponds to *rtpproxy* o flag.
>    -
>
>    session connection or session-connection
>
>    Replace the address found in the *session-level connection* (c=) line
>    of the SDP body. Corresponds to *rtpproxy* c flag.
>
>
> Have you tried this?
>
> Regards,
>
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
>
>
> On Sat, Jan 18, 2020 at 3:59 PM Jeff Pyle <jeff at ugnd.org> wrote:
>
>> Hello,
>>
>> I'm running OpenSIPS 2.4 and rtpengine 7.0.  I have the following
>> commands in my script:
>>
>> route[sanitize_sdp] {
>>         subst_body('/^o=\S+ /o=- /');
>>         subst_body('/^s=.*/s=-\r/');
>> }
>>
>> This works fine, unless I'm also using rtpengine, in which case these
>> subst_body() changes are lost.  In the past with rtpproxy this worked as
>> expected.
>>
>> I understand the potential conflicts when manipulating the SDP using
>> multiple methods at the same time.  My question is if there is a way to
>> execute this type of manual manipulation in a way that's compatible with
>> rtpengine, or achieve similar results within the rtpengine module itself?
>> My purpose is to remove the origin and session text if possible to further
>> obfuscate source network information.
>>
>>
>> - Jeff
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20200118/96ab63df/attachment.html>